Gary,
You can find out for sure whether your gearbox is original by ordering a
BMIHT certificate and comparing the documented serial number with the
one on your transmission.
You can also contact a guy in Lynnwood, Washington (yeah, I know it's
quite a ways from Walla Walla, but he's the closest I can point you to)
for help. He has documentation on all Triumph Transmissions, and
everything else.
His name is Barry Nelson and you can call him at 425-672-7367.
On the parts that are different, my documentation indicates that the
three parts that are needed to change from the 21 to the 17 tooth
reverse gear are as follows:
1. Laygear cluster
2. 1st/2nd synchro hub assembly
3. reverse gear
If the ones you got are a matched set, they should work. But Barry
should be able to say for sure.
Regards,
Joe
Gary Tash wrote:
>
> Well, it all makes my head spin. But, another question. Is there any
>database that
> tracks gearbox numbers?
>
> I have one I need to overhaul, from a 1500, but the gears do not match what
>is
> expected in a stock box. I have very complete records of the repair hx of
>the car from
> the 1st and only other owner, not showing any transmission work.
>Possibilities: 1.
> They held out on me and someone did stick in some odd gears from another
>make or
> something. 2. They put in a whole different gear box. 3. This car came
>with an odd
> one. #1 is my guess, but ..
>
> Unfortunately I got all the parts for a standard rebuild (21 > 17 tth
>switch), assuming
> it was standard, before finding out the laygear and input side don't match.
>So, I'm
> looking for a way to find out what I have so I can find out what I need. I
>should
> probably give up and buy another box, but I'm not ready to give up yet.
>Besides, it
> seems wasteful to not preserve it.
>
> Joe Curry wrote:
>
> > Gary,
> > It obviously doesn't, except to say that perhaps the plate was made in
> > May and the car completed in June. That may be the answer because yours
> > is very close to the start of the model production.
> >
> > Of course, I have found other anomalies that contradict what I have been
> > told by the BMIHT. One glaring example is in the new VIN number
> > sequences. According to the BMIHT, there were no Spitfires that have a
> > year designation of 9 in the VIN number. But I have been shown proof of
> > the existence of several with that designation. Go figure!
> >
> > Regards,
> > Joe
> >
> > Gary Tash wrote:
> > >
> > > My 1500 FM 90039U states, on the door plate, that it was made in May of
>1978, how
> > > does that square with, "In June of 1978, FM90001 was built?"
> > >
> > > Joe Curry wrote:
> > >
>
> <cut>
--
"If you can't excel with talent, triumph with effort."
-- Dave Weinbaum in National Enquirer
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